Wrapping- machine



March 1s, 1924.` 1,487,209

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` s. COOPER WRAPPING MACHINE Filed May 14', 1920 15 Sheets-sheet 14' j zg VEO Patented Mar. 18, 1924 UNITED STATES PATENT OFFICE.

SIMON COOPER, OF BROOKLYN, NEW YORK, ASSIGNOR TO IDEAL WB/.APPING MACHINE COMPANY, A CORPORATION OF NEW YORK.

WRAPPING MACHINE.

Application filed May 14, 1920. Serial No. 381,453.

To all whom t may concern.'

Be it known that I, SiMoN COOPER, a citizen et the United States, and a resident of the city ot' Brooklyn, in the county of Kings and State ot New York, have invented cerzain new and useful Improvements in Trapping Machines; and l do hereby declare that the following is a full, clear, and exact description et the saine, reference being' had to the accompanying drawings, and to the numerals o1 reference marked thereon7 which ii'orm a part of this specification.

This invention relates to wrapping machines and though not restricted to such use is particularly adapted for use in wrapping stick candy.

One the objects of this invention is to provide means for wrapping a piece of pa per around a stick of candy.

Another object oit the invention is to provide means for twisting the ends ot the piaper after it has been rolled around the candy. v

Other and further important objects of this invention will be apparent from the disclosures in the specification and drawings.

The invention (in a preferred torni) is illustruted in the drawings and hereinafter more fully described.

On the dra-wings:

Figure 1 is an end view of a machine einliollying the present improvements.

liigurc 2 is a plan view ot the same.

Figure S3 a plan view with part of the upper structure removed.

Figure il; is a t etail view taken on the linev 4--4 oi Figure 2.

Figure 5 is a section ou the Figure Figure ti is a section on the line (il-ti of lligui'e 2, with paris removed.

Figure i' is u section on the line '4-7 of Figure 2.

Figure ti is a section on the line 8 8 of Figure 2.

Figure '9 is u sin'iilar section to Figure S, sluncing the i'iarts in another position. 1 ll'igure 1() is a section on the line 10-10 ofi Figure 2.

Figure l1 is section on the line 11-11 ot rp' c. w i. igiiie i,

li ue 5-5 of Figure 12 is a. section on the line 12-12 of Figure 7.

Figure 13 is a section on the line 13-13 of Figure 6, with parts removed.

Figure 14 is a section on line 14-14 of Figure 10.

Figure 15 is a section on line 15-15 of Figure 14.

Figure 16 is a section on line 16H16 of Figure 5, with parts removed.

Figure 17 is a view on an enlarged scale of one of the parts shown in Figure 8.

Figure 18 is a section on line 18-18 of Figure 27 with parts removed.

Figure 19 is a view taken on the line 19-19 of Figure 2.

Figure 20 is a view taken on line 20-20 of Figure 2.

Figure 21 is a view taken on line 21-21 of Figure 2.

Figure 22 is a View taken on line 22-22 oi Figure 21.

Figure 23 is a view taken on line 23-23 ot Figure 10.

Figure 24 is a vertical section through one ot the twisting members.

'Figure 25 is a pla-n view of the end portion of one of the twisting members.

Figure 26 illustrates the first step in the wrapping of the candy.

Figure 27 illustrates the second step in the wrapping process.

Figure 28 illustrates the linal step ot the process.

Figure 29 is a detail view of one part ot the mechanism shown in Figure 21.

As shown in the drawings:

The sticks 'ot candy 139 are ifed into the machine along a chute 1 while a strip oi. paper 138 is fed diagonally into the machine Jfrom a roll o1 paper 2. The paper is cut off into pi'oper lengths hy a knife 8 so that when a stick of candy is rolled therein the paper will project beyond theends of the stick suliiciently to allow it to be twisted therearound. One edge of the paper is wetted so that it will adhere to the stick of candy as the latter is pushed over it. The candy is then rotated between three rolls 4,

and 6, which wind the paper around the stick. Towards the end of the rota/ting ciu operation the projecting ends of the paper are seized by twisting` clumps 73 so that further rotation twists the ends of the paper. The wrapping operation is then complete and the wrapped stick is discharged troni the rolls onto a belt conveyor 8. rIhe vairions steps in the wrappingprocess are illustrated diagrammatieally in Figures 26, 27 and 28.

The inachine is mounted on a platform 9 carried by a pedestal 10. For driving the mechanism a shaft 26 is provided havingv a pulley 27 thereon for connection to a suitable motoii` or other source of power. Connected to this shaft by gears 28 and 29 is a cani shaft 30. The paper feeding; mechanism is driven 'from the shaft 30. For supporting` the roll of paper 2 and the mechanism connected therewitL frame members 11 are obliquely Depending` pair of arms Yfrom the members 11 are a 12 (Figure 1) between which is journalled reel 18 carrying the roll of paper 2. Pivot-ally secured to the lower ends of the arms 1.2 are a pair of' members 141-, carrying; paper 'tension roller 1 5. To the lower outer end ot the arms 1e is attached an arm 16 adapted to bear i iinst the periphery of the roll 2 and limit the downward movement of the tension roller 15. The paper in its passage from the roll 2 t0` the tension roller 15 passes over a. guide roller 164 mounted on a bracket 17' attached to the arms 12, rlhe paper, after it leaves the tension roller 15, passe.' around a guide roller 18 (Figure 20) and :trom thence between a pair of toed rollers 19 and 20. Roth of these rollers are erooved as at 21 and for the reception of fingers 23 and 24:, which serve to act as strippers forpreventing' the paper strip winding` itself up on either of the rollers 19 or 20, as well as `guides the introduction of the paper into the main part ot the machine, wWater is applied to the lett-hand edge oit the roller (Figure 21) trom a container 230 pivotally attached to the traine members 11 at 240. ln the bottom ot the container is a slot through which the ede'e of a disc 25 extends for engagment with the left-hand edge ot the roller 20. Suiiicient space is vlett between the slot and the disc 25% to keep the edge of the disc wet without allowing water tot run through in a. steady st un. Bis the container is pivoted at 240 the disc 25 rests on and is. therefore., always in. Contact with the roller 20. The disc is driven from tho roller 20 by gears 33 and by the intermediaiwv shaft 35.

For keeping` the periphery of the disc 253 clean and removing rany pi-iraliin. lint or ther like picked up 'from the paper by the roll 2O and thereby transferred to the disc 25. a scraper 140 `is provided. This scraper provided witha threaoeu stein 141 for attached to the platform 9.-

ragement with a lnurled nut rotatably mounted in a bracket 14;?, secured to one wall ot the water container 2230. y

The roller 19 is provided. with a hub 2G (Figure 21) journalled on shaft 3'?. To the outer ond of the sha-tt 37 is secured an annular member 38 having; spring` pressed pins 39 mounted therein for engagement with the end of the hub 36, which is pirovided with ratchet teeth 1-0, as shown in Figure 29. Vilith this construction if the shaft 87 is oscillated to and Jfro the hub 36 and the roller 19 mounted thereon is turned interni it tently in one direction only.

The shaft 37 is oscillated by means oit a cam nt1 on the. shaft 30, which provided with a cani kgroove T12? in which rides a roller 13' (Figure 18) on an arm 441. This arm is rotl (bly mounted on a stub shaft 15 and is connected by a link 11G to another arm 47 pivotally nrounted on a stub sha'tt 118 parallel to the shaft 45. @n the end ot this second arm if? isv arranged a toothed segment 4f), whieh'meshes with a bevel pinion 50 on the end ot the shaft 37 ('Figure 21,). Consequently as the cam shaft 8O rotates the toothed segmi-bnt 4-.9 oscillates t0 and. tro and rotates t ie roller 19 every other stroke.

The paper is fed forward into the inechine between the block 51 and the plate 52 tl'ierebencath (Figure When a sutficient length for wrappingone stick oit candy has been Yted into the machine it is cut ol'lQ by ineens of the knife 3. his kni'te is pivotaily mounted on the machine at 51 and is provided with an upstanding arm 55 connected by a link 56 to the lower end ot a double rocker arm 5?' secured to a shaft 100 the upper end ot the arm carryinga roller 58. which runs in a cam groove 59 ci" a cani 60.

Preterably the rollers 19 and 2O and their operating' mechanism are so arranged that one rotative movement thereof feeds into the machine sutticient paper :tor one stiek ot candy. lonveuiently. :iisd the ram which operates the knife is arranged to de press the latter immediately or shortly a'tter the feeding` operation has been coinpleted.

rlhe lower ond ot' (he chute 1. down which the sticks ot candy are ted is downwardly inclined towards the upper surtaee et the block 51. number ot guards G1 are provided adjacent the lower end ot the chute l (ltirures 8. 9 and 1"?) adapted lo retain the sticks in position on the latter. fit their rear ends the euides are enlarged. and slotted. a5 it 138C", `tor engagement with a supporting bar 39"' journalled at each end in the side members ot the frame. Pivoted to the lower end oi cach lrguard is a. latch 63 adapted when in the vposition shown in Figure 1'? to prevent the passage et a, stick et candy therebeneath. @n the forward side of this latch is a lug 64, to which a rod is pivotally attached. This rod passes through a sleeve 664 pivotally mounted by pins 67 between projections 68 on the guard 61. A spring 69 is mounted on the rod 65 tending to move the rod 65 downwards and thereby move the latch rearwardly. Locknuts 70 and 71 are provided for limiting the movement of the rod 65 downwards.

In the block 451 a passage 72 is formed for a Pusher-bar 73 to reciprocate therein (Figures 8 and 9). This pusher-bar is adapted to force a stick of candy against and under the latch 63, as indicated in Figure `8. This pusher-bar is connected by a link 74 to a rocker arm 75 mounted .on a shaft 76. Also secured to this shaft 76 is an arm 77 (Figure 7) connected by a link 78 to a rocker 79 on a shaft 80. This rocker carries a roller which runs in a cam groove 81 in the cam 60 (Fig. 5).

The mechanism for operating the rolls 4, 5 and 6 will now be described. In Figure 14 are shown the gears which connect these rolls together. Six gears 82. 83, 84, 85, 86 and 87 are provided all of the same diameter and same size of tooth. The gear 82 is on the main driving shaft 26, which carries the roll 4, and the gears 83 and 87 on either side of it are mounted on shafts 88 and 89 journalled in the main frame of the machine. The gears 84 and 86 are secured `to the shafts 90 and 91, which carry the rolls 6 and 5 respectively. Gear 85 rotatably arranged on the shaft 92, connects the gears 84 and 86. The ends of the shafts 90, 91, 92 are journalled in castings 93 adapted to be rocked about the axis of the shafts 90 and 91 alternatively. The space between the rolls 4, 5 and 6, when the parts are in the position shown in Figure 14, is just sufficient to receive a stick of candy so that the latter may be engaged and rotated by 'all of the rolls 4, 5 and 6 simultaneously. In order, however, to bring the candy ystick so that it may be so acted on by the rolls, the roll 5 must be lifted as shown in Figure 8 to allow the stick to pass thereunder. The roll 5 is then lowered for the wrapping and twisting operation. llicn those steps are complete the roll 6 is lifted to allow the stick to pass thereunder onto inclined rails 94 lead- .ing to the belt conveyor 8. The alternate lifting of `the rolls 5 and 6 is brought about by rocking the castings 93. For this purpose the latter are provided with lugs 96 and 97 pivotally connected to arms 98 and 99 on shafts 80 and 100. The shaft 80 is oscillated by a cam 102 (Figure 6) by means of an. arm 108 having a roller 104 engaging a. cam groove therein. Similar v the shaft 100 is oscillated bv a cam 60 (Figure 9) as previously described.

As the roll 5 is lift-ed the pusher bar 73 causes one of the candy sticks to pass thereunder, and it contacts with the moistened edge of the paper strip causing adhesion. The rotation of the rolls 4, 5 and 6 insures that the candy bar is. wrapped in the stick of paper, on account of the turning motion caused.

The paper strip is held tightly in position around the candy stick as `the latter is brought into engagement with the rolls 4, 5 and 6 by a series of fingers 144 (Figures 7, 8 and 9). These fingers are secured to an arm on a shaft 146, to which is attached an arm 147 connected by link 149 and lug 148 to the shaft 76 which operates the pusher-bar 73. yConsequently as the push-bar propels a stick of candy into the space between the rolls 4, 5 and 6, the 1ingers 144 move in the opposite direction until they contact with the opposite side of the candy stick, as shown in Figure 7. As the pusher-bar is retracted the fingers are also withdrawn into the position shown in Figure 9 so that it will not interfere with the discharge of the wrapped stick.

The stick is' further guided, held in position and finally ejected by a second set of fingers 150 secured to the shaft 92. These fingers are operated from the rock shaft 80 by means of arm 151, link 152 and arm 153.

'Ihe construction of the rolls 4, 5 and 6 is shown more particularly in Figure 23. Each roll consists of a shaft 110 having recessed portions 111 and intermediate projecting portions 112. The latter are knurled to provide adequate gripping surface for the rings 113 of rubber mounted thereon. Clutch projections 114 are provided for connecting each roll to its corresponding shaft 26, 90 and 91. The recessed portions of the rolls are adapted to receive the projecting portions of the guards 61, latch 63 and the parts co-operating therewith, as the pusher bars 7?), lingers 144 and ejectors 150.

Since the sticks of candy may vary in diameter or have excrescences thereon, it is desirable that a greater range of adjustment be provided than is afforded by the resiliency of the rubber rings 113. Preferably, therefore, one of the rolls, as 4, is carried by spherical bearings 154 at the ends of arms '155 secured to the rock-slm'ft 156 (F On this shaftare oppositely arranged lugs 157 and 158, in which are arranged set- 1 screws 159 and springs 160 respectively, which bear against the underside of the plate 51 (Fig. 9). The set screws limit the upward movement of the roller 4, while the springs 160 allow the roller to yield resiliently under downward pressure.

In order to allow for the yield and bodily movements of the roll 4, it is connected to its driving shaft 26 by a flexible coupling or the like which in the present instance consists of Bit a clutch member 155 (Figure 12) having a slidable tongue and mortise connection with the end of shaft 26 land a cooperating clutch member 166 secured to trie end of the shaft of roll l and having a slit able tongue and mortise connection With clutch member 165 at substantially right angles to the first mentioned tongue and mortisev connection, as shown in dotted lines, providing thereby a form of giinbal joint which flcXes at right angles to its axis.

The twistingl` mechanism is shown mor particularly in Figures 24;A and 25. A sleeve is mounted in the freine on ea h side of the rolls /1-, V 6 with its airis in line with the axis of the candy stiel; -when it is being rotated by all of the rolls 4;, 5 and 6. To the end of this sleeve a bracket 116 is attached having` pivoted thereto by pins 17 clamping plates 'l'. @n the inner ends of the plates are formed teeth 118 adapted to mesh .vith rack teeth in a block 119 secured to the end of a rod 120 slidably mounted within the sleeve 115. lilith this arrangement by reciprocatinp)` the rod 120 the plates may be brought towards and away from each other. A. spring 121 is provided for retracting` the block 119 and rod 120 to bringV the plates into clamping* position, as shown in Figure 211. Separation of the plates is brought about by rockers 122 pivotally mounted on brackets 123 and carrying rollers 1211- at their upper ends for engagement- With cam grooves 125 in the peripheries of the cams 60 and 102.

After the twisting` operation is complete the Wrapped sticks are discharged onto the conveyor belt 8. ylfhis belt is carried by pullcys 126 (Figure 8) and 127 (Figure mounted on shafts 128 and 129 iournalled in the side members 130 and 131 of the frame of the machine. The shaft 129 is rotated in termittently by means of a paivl 132 engaging the teeth of a ratchet Wheel secured to the end of the shaft 129. The paivl 132 is pivotally mounted at 1311 on a rocker 135 rotatably mounted on the end of the shaft 129. To the lower end of this rocher is connected a link 186 attached to an arm 137 ou the shaft 80 oscillated by the cam 102.

l am aware that numerous details of construction may be varied through. a Wide range Without departing from the principles of this invention, and l therefore do not purpose limiting the patent granted otherivisethan necessitated by the prior art.

l claim es my invention:

l.. The method of* Wrapping -fylindrieal articles e-fnnprisingg; passing' a strip of Wrapping material obliduely across the path of movement of s "ch article, cutting' the strip parallel to suoi path of movement, rotating; the object to vr ap the strip thercaround, and Whilst the object is still rotatingv gripping the ends of the Wrapping material to cause the latter to be twisted around the ends of the object.

.2. rllhe method of Wrapping sticks of candy comprising wetting one edge of a strip of Wrapping material, passing; such strip obliquely across the path of movement f such stica, cutt the strip parallel to such path of movement, rotating)` the stiel; to -v/rap the strip therearound and Whilst the sticlt is still-rotating gripping` the ends of the strip to cause the latter to tivist around the ends of the sticl.

3. A device of the hind described comprising three rollers, gears connecting` each of the rollers with the other two rollers, means for driving one roller and means for rocking' the other ivo rollers alternatively about the axis of first one and then the other roller of such pair to allow first admittance and then discharge of an article to be operated on by all three rollers simultaneously.

l. A device of the kind described com-- prising` three rollers, gears connecting each of the rollers With the other two rollers, a. driving` shaft, a flexible connection betvvecn said shaft and one of the rollers, resiliently mounted supporting' bea-rings for the latter roller, and means for rocking the other tvvo rollers alternatively about the axis of first one and then the other to allow first admittance and then discharge of an object to be operated on by all three rollers simultaneously.

5. A device of the kind described cour prising three rollers, s connecting` each of the rollers with the other two rollers, means for driving` one roller, means for rockino the other two rollers alternatively about trie axis of first one and then the other roller of such pair, means for introducing a cylindical objec and a piece of Wrapping material Within the last mentioned rollers in one posit-ion, and means for discharging" the Wrapped article in the other position.

6. A, device of the kind described coinprisinpn` three rollers, gears coerce/.tin;` all three rollers, a driving; sha-ft, a flexible connection between said shaft and one of the rollers. resilieutly mounted supper ,uur bearings for the latter roller, and means for rocking); one of the other ers about the axis ol" the renmiuing' roller.

'i'. ...d device, of the hind described our prisme; three rollers, nier-.us for driving;- one roller,and means for rocking` the other .\vo rollers alternatively about the axis of first one and then the other roller of such pair to alloiv first adinittanco and then discharge of an object to be operated on by all three rollers simultaneously.

S. device of the sind described coniprisine' three rollers, gears connecting each of the rollers with the other tivo rollers, means for driving; one roller, a frame having bearings thereon for the other tvvo rollers, a shaft parallel to the rollers, cams thereon, and operative connections between the cams and the frame adapted to rock the trame alternately about the axes ot the rollers journalled therein.

i). A device etl the kind described comprising three rollers, gears on each roller, intermediate gears between each pair ot first mentioned gears, means Ylor driving one roller, and means Yfor rocking the other two rollers alternately about the axis ot tirst one and then the other roller otl such pair to lirst admit and then discharge an object to be operated on by all three rolls simultaneously.

10. A device of the kind described comprising three rollers, gears connecting each of the rollers with the other two rollers, means-tor driving one roller, means for rocking the other two rollers alternately about the axis ot tirst one and then the other roller ot the pair to first admit and then discharge an object to be operated on by all three rollers simultaneously, a pusher for moving an article into position to be operated on by the rollers and an ejector adapted to discharge the article.

11. A device of the kind described comprising three rollers, means for driving one roller, means for rocking one roller about the axis of another roller towards and away from the third roller, and a pusher-bar adapted to project an article into engagement with the rolls when the rollers are in separated position, one of the rollers having an annular groove therein for the reception of the pusher-bar.

12. A device of the kind described coinprising three rollers, means for driving one roller, means for rocking one roller about the axis of another roller towards and away from the third roller, a push-bar for projecting an article between one pair of rolls, and an ejector adapted to operate between another pair ot rolls to discharge the artiele.

A device ol"l the kind described coinprising three rollers, means for driving one roller7 means for rocking one roller about the axis of another roller towards and away from the third roller, a push-bai; for projecting an article between one pair of rolls, and an ejector adapted to operate between another pair of rolls to discharge the article, the rolls being grooved annularly to provide space for the operation of the pusher-bar and ejector.

14. A device oit the kind described comprising three rollers, means for driving one roller, means for rocking one roller about the axis ol another roller towards and away 'from the third roller, a pusher-bar adapted to project an article into engagement with the rolls when the rollers are in separated position, and a supporting member adapted to engage the opposite side of the article to the pusher when such article is in position to be operated upon.

15. A device oi' the kind described comprising three rollers, means tor driving one roller, means for rocking one roller about the airis of another roller towards and away from the third roller, a push-bar for projecting an article between one pair of rolls, a supporting` member adapted to operate between another pair of rolls, and an ejector adapted to operate between the third pair of rolls.

16. A device oli' the kind described comprising a frame, rollers carried thereby adapted to rotate an article within a sheet of wrapping material, pairs of gripping 'jaws pivotally mounted on the traine, operating rods for said jaws having gear connections with the latter, and means for reciprocating said rods to cause the jaws to grip the projecting ends of the sheet of wrapping material whilst the article is being rotated to cause the wrapping material to be twisted around the ends of the article.

17. A device of the kind described comprising a pair of feed rolls, corresponding grooves in said rolls, and feed means and ejecting means arranged to project within said grooves.

18. A device of the kind described comprising a pair of feed rolls, both of said rolls having a series of annular grooves disposed therealong, and two series of stripping tingers arranged to project within said grooves and adapted to act as guides for a strip of material passed between the rolls.

19. A device ol the kind described comprising means for wetting one edge of a strip of wrapping material as it passes into the machine, a chute for sticks of candy, means for passing the wetted wrapping material obliquely under the discharge end of the chute, means for cutting the wrapping material parallel to the chute, means for discharging the sticks one by one from the chute, means for rolling the stick within the cut-olf portion ol the wrapping material, and means for twisting the ends ot the wrapping material around the ends o't the stick.

20. A device oi the kind described comprising means for wetting one edge of a strip of wrapping material as it passes into the machine, a chute for sticks of candy, means for passing the wetted wrapping material obliquely under the discharge end of the chute, means for cutting the wrapping material parallel to the chute, three rollers, gears connecting each olf the rollers with the other two rollers, means for driving one roller, means for rocking the other two rollers alternately about the axis of first one and then the other roller of such pair, means for moving a stick 'from the bottom of the 

